AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Climate and Change in Ecosystems — Cumulative exam Answers

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21
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An observation is _______.

A
a possible explanation for events using prior knowledge
B
always quantitative
C
made using any of the five senses
D
always qualitative
22
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Scientists use critical thinking skills throughout the process of research and experimentation. Why is it important for scientists to remain open-minded about the information they come across in their experiments?

A
It prevents them from injecting bias into their experiments.
B
It allows them to inject bias into their experiments.
C
It improves the accuracy of the information.
D
It lowers the accuracy of the information.
23

Which of the following biomes are considered temperate biomes?

A
deciduous forests and grasslands
B
chaparral and tundra
C
rainforest and tundra
D
alpine and deciduous forests
24

Convert 0.0150 km to meters and express the answer to the correct number of significant digits.

A
150 m
B
15 m
C
15.0 m
D
150.0 m
25

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations does not help an animal move through the water?

A
streamlined body
B
thick layer of blubber
C
flippers and flattened tails
D
smooth, almost furless body
26

Desert plants are often widely spaced due to competition for rainwater.

A
T
B
F
27

Which of the following statements about change in ecosystems is true?

A
Ecosystems experience change through human activity only.
B
Ecosystems experience change through natural events only.
C
Ecosystems experience no change.
D
Ecosystems experience change through human activity and natural events.
28

There is a single instrument to measure climate change.

A
T
B
F
29

Small aquatic organisms, such as coral, are the producers of the ocean.

A
T
B
F
30

Fluctuations in the phosphorus cycle in aquatic ecosystems _______.

A
can lead to changes in the growth rates of aquatic populations
B
are never caused by human impact on the environment
C
lead to a decrease in the amount of phosphorus found in sediment
D
never occur naturally
31

Which of the following is not true about the evolution of biomes?

A
Both natural and artificial changes can cause the evolution of biomes.
B
Volcanic activity can result in the evolution of biomes.
C
Biome evolution is influenced by tectonic shifts that change the shape of continents.
D
Human activities cannot impact in the evolution of biomes.
32

What types of organisms in an ecosystem will likely be affected by a flood?

A
producers, consumers, and decomposers
B
producers and consumers
C
consumers and decomposers
D
no organisms will be affected
33

Zoning laws establish _______.

A
what types of buildings can be built in an area
B
the uses an area of land can be put to
C
who can live in an area
D
the types of business that can occupy a building
34

Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the population density of bison living in Yellowstone?

Question illustration
A
1.3 bison/mi
B
16 bison/mi
C
77 bison/mi
D
0.77 bison/mi
35

Butterflies laying their eggs on milkweed plants occurs at what level of the biosphere hierarchy?

A
ecosystem
B
biome
C
population
D
community
36

Changes to the global climate could include _______.

A
changes to temperature
B
changes to pressure
C
changes to precipitation
D
all of the above
37

Which of the following is not true regarding the cacao tree?

A
It originated in the Amazon.
B
The cacao tree produces fruit all year long.
C
Cocoa is made from the whole cacao fruit.
D
The cacao fruit has a mango flavor.
38

Which of the following about the ozone layer is not true?

A
The ozone layer is formed in the stratosphere.
B
The ozone layer helps sustain life by absorbing a large amount of incoming UV radiation.
C
Ozone in the troposphere is beneficial to living organisms.
D
Depletion of the ozone layer can lead to an increase in skin cancer.
39

The disproportionately high appearance of polydactylism among the Amish suggests that _______.

A
it is a common mutation
B
it is a common birth defect in Pennsylvania
C
it was overrepresented in the gene pool of the original Amish settlers
D
humans are prone to this birth defect
40

The following graph is representative of what type of population growth?

Question illustration
A
logistic
B
exponential
C
linear
D
triangular

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